Atmosphere -
Atmosphere is used to describe the overall feel of the tag. A great atmosphere will have the viewer feeling exactly how the designer wanted them to feel. Whether it be cold from a tag using mostly cold effects, or warm from a tag with warm colors, execution is everything with this term. Atmosphere is a huge element in most tags.
Color -
Colors are very important. Whether they are complimenting or clashing can either break or make a tag. Learning how to use a color wheel and then implementing the knowledge into the designing of your tags is a great way to get some fantastic results.
Composition -
Composition is used when referring to the way you've mixed everything together. Your effects, your lighting, your colors, etc. In other words, it's the arrangement of everything and how you've chosen to lay it all down.
Contrast -
Contrast is used in reference to the lights of your lights and the darks of your darks. Contrast is created by using opposites near or beside one another, such as a light color near a dark one.
Depth -
Depth is used in reference to how flat or not flat your piece feels. A good piece will have effects happening in all sorts of different layers to a piece (such as a foreground and background). Depth keeps pieces interesting and helps with the overall aesthetic appeal.
Effects -
Effects is used in reference to what you have happening in the piece itself. Whether it be interesting elements created through C4Ds or splatter brushes or whatever, the term "effects" is used when referencing those.
Execution -
Execution is used in reference when referring to how you've gone about doing something. For example, if someone comments on how poor your execution is on your element of depth, it means your approach and attempt at introducing depth into your piece was poorly done and needs improvement.
Flow -
Flow is used in reference when referring to what direction the piece's current stature moves the viewer's eye. Ideally it's good to have most points of the piece bring the viewer's eye to the intentional focal. Flow, when used properly, can have very beneficial effects on depth as well.
Focal -
The focal point of a piece is where the designer wanted the viewer to pay the most attention to. Whether it be a render in a normal tag or a certain area of effects in an abstract piece, this particular element of a piece of artwork is crucial to having a general aesthetic appeal.
Lighting -
The lighting is used in reference to how you've implemented having a light source(s) into your piece. Great execution of a light source is important in all pieces as mostly every piece you'll stumble across with have a light source.
